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Shale, water-containing sludge, biomass ceramsite and production method thereof

A production method and biomass technology, applied in the field of materials, can solve the problems of less scale use, underutilization and underutilization of straw, and achieve low production costs, elimination of secondary pollution problems, and reduction of resources. effect of processing

Inactive Publication Date: 2010-08-18
GUIZHOU XIUWEN KUNTAI GREEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Crops such as corn, rapeseed, and rice straw will produce a large amount of straw. Although there are reports on the utilization of straw, there are few cases of large-scale use. There are still a large number of straws that have not been fully utilized in the vast rural areas.
And the sawdust produced by wood processing has not been fully utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of production method of shale, hydrous sludge, biomass ceramsite, comprises the following steps:

[0019] (1) 50 parts by weight of shale, 40 parts of sludge with a water content of 65%, and 6 parts of crushed biomass (corn, rapeseed, rice straw, etc.) are added to the mixer and fully stirred, adding a certain amount of water , so that the total water content of the material is 15%, the mixed material is sent to the granulator for granulation; after granulation, the material is spherical, the diameter of the major axis is 8-12 mm, and the diameter of the minor axis is 5-10 mm.

[0020] (2) After granulation, the raw material balls are sent to the preheating zone and roasting zone of the rotary kiln for ceramsite firing. The preheating temperature is controlled at 280°C. After preheating for 2 minutes, it enters the roasting zone. The roasting temperature is 1200°C. The time is 5 minutes. At this time, the material ball is fully expanded and the ceramsite is fired...

Embodiment 2

[0027] A kind of production method of shale, hydrous sludge, biomass ceramsite, comprises the following steps:

[0028] (1) Add 65 parts of shale, 35 parts of sludge with a water content of 75% and 8 parts of crushed biomass (sawdust) into the mixer by weight and stir thoroughly, and add a certain amount of water to make the total content of the material The water content is 20%, and the mixed material is sent to the granulator for granulation; after granulation, the material is ellipsoidal, with a major axis diameter of 8-12 mm and a minor axis diameter of 5-10 mm.

[0029] (2) After granulation, the raw material balls are sent to the preheating zone and roasting zone of the rotary kiln for ceramsite firing. The preheating temperature is controlled at 330°C. After preheating for 2 minutes, it enters the roasting zone. The roasting temperature is 1120°C. The time is 10 minutes. At this time, the material ball is fully expanded and the ceramsite is fired;

[0030] (3) The fire...

Embodiment 3

[0036] A kind of production method of shale, hydrous sludge, biomass ceramsite, comprises the following steps:

[0037] (1) 58 parts by weight of shale, 38 parts of sludge with a water content of 70%, and 4 parts of crushed biomass (sawdust) are added to the mixer and fully stirred, and a certain amount of water is added to make the total content of the material The water content is 20%, and the mixed material is sent to the granulator for granulation; after granulation, the material is spherical or ellipsoidal, with a major axis diameter of 8-12 mm and a minor axis diameter of 5-10 mm.

[0038] (2) After granulation, the raw material balls are sent to the preheating zone and roasting zone of the rotary kiln for ceramsite firing. The preheating temperature is controlled at 300°C. After preheating for 2 minutes, it enters the roasting zone. The roasting temperature is 1180°C. The time is 7 minutes. At this time, the material ball is fully expanded and the ceramsite is fired;

...

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Abstract

The invention discloses a shale, a water-containing sludge, a biomass ceramsite and a production method thereof. The method comprises the steps: mixing and sufficiently stirring 50-65 parts by weight of shale, 35-40 parts by weight of sludge with 65-75% of the water content and 4-8 parts of crushed biomass, adding water to the mixture so that the total water content of the material is 15% to 20%, and granulating the mixed material; preheating, for 2 minutes at 280 to 330 DEG C, and then roasting, for 5 to 10 minutes at 1120 to 1200 DEG C, raw meal ball after granulation in order to obtain ceramsite; and cooling the obtained ceramsite to room temperature. The method has the advantages of high production efficiency, low energy consumption, low production cost, good product performance and great environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a kind of ceramsite, and also to a production method of the ceramsite. Background technique [0002] With the development of urban economy and the increase of population, the water pollution in our country is becoming more and more serious, and the construction of urban sewage treatment plants has become an indispensable measure to control water pollution. However, with the acceleration of the construction of urban sewage treatment plants, the amount of sludge has increased significantly. The increased sludge has caused great pollution to the ecological environment, making the problem of sludge treatment and disposal increasingly prominent. If it is not disposed of properly, it is easy to cause secondary pollution. secondary pollution. With the continuous increase of sludge production, countries all over the world pay more and more attention to the treatment, disposal and reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06
Inventor 陈治鲆邱枫云商乘浩
Owner GUIZHOU XIUWEN KUNTAI GREEN